|
|
#!/usr/bin/env python
|
|
|
# encoding: utf-8
|
|
|
# middleware to handle mercurial api calls
|
|
|
# Copyright (C) 2009-2010 Marcin Kuzminski <marcin@python-works.com>
|
|
|
#
|
|
|
# This program is free software; you can redistribute it and/or
|
|
|
# modify it under the terms of the GNU General Public License
|
|
|
# as published by the Free Software Foundation; version 2
|
|
|
# of the License or (at your opinion) any later version of the license.
|
|
|
#
|
|
|
# This program is distributed in the hope that it will be useful,
|
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
# GNU General Public License for more details.
|
|
|
#
|
|
|
# You should have received a copy of the GNU General Public License
|
|
|
# along with this program; if not, write to the Free Software
|
|
|
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
|
|
# MA 02110-1301, USA.
|
|
|
"""
|
|
|
Created on 2010-04-28
|
|
|
|
|
|
@author: marcink
|
|
|
SimpleHG middleware for handling mercurial protocol request (push/clone etc.)
|
|
|
It's implemented with basic auth function
|
|
|
"""
|
|
|
from itertools import chain
|
|
|
from mercurial.error import RepoError
|
|
|
from mercurial.hgweb import hgweb
|
|
|
from mercurial.hgweb.request import wsgiapplication
|
|
|
from paste.auth.basic import AuthBasicAuthenticator
|
|
|
from paste.httpheaders import REMOTE_USER, AUTH_TYPE
|
|
|
from rhodecode.lib.auth import authfunc, HasPermissionAnyMiddleware
|
|
|
from rhodecode.lib.utils import is_mercurial, make_ui, invalidate_cache, \
|
|
|
check_repo_fast, ui_sections
|
|
|
from rhodecode.model.user import UserModel
|
|
|
from webob.exc import HTTPNotFound, HTTPForbidden, HTTPInternalServerError
|
|
|
import logging
|
|
|
import os
|
|
|
import traceback
|
|
|
|
|
|
log = logging.getLogger(__name__)
|
|
|
|
|
|
class SimpleHg(object):
|
|
|
|
|
|
def __init__(self, application, config):
|
|
|
self.application = application
|
|
|
self.config = config
|
|
|
#authenticate this mercurial request using authfunc
|
|
|
self.authenticate = AuthBasicAuthenticator('', authfunc)
|
|
|
self.ipaddr = '0.0.0.0'
|
|
|
self.repository = None
|
|
|
self.username = None
|
|
|
self.action = None
|
|
|
|
|
|
def __call__(self, environ, start_response):
|
|
|
if not is_mercurial(environ):
|
|
|
return self.application(environ, start_response)
|
|
|
|
|
|
proxy_key = 'HTTP_X_REAL_IP'
|
|
|
def_key = 'REMOTE_ADDR'
|
|
|
self.ipaddr = environ.get(proxy_key, environ.get(def_key, '0.0.0.0'))
|
|
|
|
|
|
#===================================================================
|
|
|
# AUTHENTICATE THIS MERCURIAL REQUEST
|
|
|
#===================================================================
|
|
|
username = REMOTE_USER(environ)
|
|
|
|
|
|
if not username:
|
|
|
self.authenticate.realm = self.config['rhodecode_realm']
|
|
|
result = self.authenticate(environ)
|
|
|
if isinstance(result, str):
|
|
|
AUTH_TYPE.update(environ, 'basic')
|
|
|
REMOTE_USER.update(environ, result)
|
|
|
else:
|
|
|
return result.wsgi_application(environ, start_response)
|
|
|
|
|
|
#=======================================================================
|
|
|
# GET REPOSITORY
|
|
|
#=======================================================================
|
|
|
try:
|
|
|
repo_name = '/'.join(environ['PATH_INFO'].split('/')[1:])
|
|
|
if repo_name.endswith('/'):
|
|
|
repo_name = repo_name.rstrip('/')
|
|
|
self.repository = repo_name
|
|
|
except:
|
|
|
log.error(traceback.format_exc())
|
|
|
return HTTPInternalServerError()(environ, start_response)
|
|
|
|
|
|
#===================================================================
|
|
|
# CHECK PERMISSIONS FOR THIS REQUEST
|
|
|
#===================================================================
|
|
|
self.action = self.__get_action(environ)
|
|
|
if self.action:
|
|
|
username = self.__get_environ_user(environ)
|
|
|
try:
|
|
|
user = self.__get_user(username)
|
|
|
self.username = user.username
|
|
|
except:
|
|
|
log.error(traceback.format_exc())
|
|
|
return HTTPInternalServerError()(environ, start_response)
|
|
|
|
|
|
#check permissions for this repository
|
|
|
if self.action == 'push':
|
|
|
if not HasPermissionAnyMiddleware('repository.write',
|
|
|
'repository.admin')\
|
|
|
(user, repo_name):
|
|
|
return HTTPForbidden()(environ, start_response)
|
|
|
|
|
|
else:
|
|
|
#any other action need at least read permission
|
|
|
if not HasPermissionAnyMiddleware('repository.read',
|
|
|
'repository.write',
|
|
|
'repository.admin')\
|
|
|
(user, repo_name):
|
|
|
return HTTPForbidden()(environ, start_response)
|
|
|
|
|
|
self.extras = {'ip':self.ipaddr,
|
|
|
'username':self.username,
|
|
|
'action':self.action,
|
|
|
'repository':self.repository}
|
|
|
|
|
|
#===================================================================
|
|
|
# MERCURIAL REQUEST HANDLING
|
|
|
#===================================================================
|
|
|
environ['PATH_INFO'] = '/'#since we wrap into hgweb, reset the path
|
|
|
self.baseui = make_ui('db')
|
|
|
self.basepath = self.config['base_path']
|
|
|
self.repo_path = os.path.join(self.basepath, repo_name)
|
|
|
|
|
|
#quick check if that dir exists...
|
|
|
if check_repo_fast(repo_name, self.basepath):
|
|
|
return HTTPNotFound()(environ, start_response)
|
|
|
try:
|
|
|
app = wsgiapplication(self.__make_app)
|
|
|
except RepoError, e:
|
|
|
if str(e).find('not found') != -1:
|
|
|
return HTTPNotFound()(environ, start_response)
|
|
|
except Exception:
|
|
|
log.error(traceback.format_exc())
|
|
|
return HTTPInternalServerError()(environ, start_response)
|
|
|
|
|
|
#invalidate cache on push
|
|
|
if self.action == 'push':
|
|
|
self.__invalidate_cache(repo_name)
|
|
|
|
|
|
return app(environ, start_response)
|
|
|
|
|
|
|
|
|
def __make_app(self):
|
|
|
hgserve = hgweb(str(self.repo_path), baseui=self.baseui)
|
|
|
return self.__load_web_settings(hgserve, self.extras)
|
|
|
|
|
|
def __get_environ_user(self, environ):
|
|
|
return environ.get('REMOTE_USER')
|
|
|
|
|
|
def __get_user(self, username):
|
|
|
return UserModel().get_by_username(username, cache=True)
|
|
|
|
|
|
def __get_action(self, environ):
|
|
|
"""
|
|
|
Maps mercurial request commands into a clone,pull or push command.
|
|
|
This should always return a valid command string
|
|
|
:param environ:
|
|
|
"""
|
|
|
mapping = {'changegroup': 'pull',
|
|
|
'changegroupsubset': 'pull',
|
|
|
'stream_out': 'pull',
|
|
|
'listkeys': 'pull',
|
|
|
'unbundle': 'push',
|
|
|
'pushkey': 'push', }
|
|
|
for qry in environ['QUERY_STRING'].split('&'):
|
|
|
if qry.startswith('cmd'):
|
|
|
cmd = qry.split('=')[-1]
|
|
|
if mapping.has_key(cmd):
|
|
|
return mapping[cmd]
|
|
|
else:
|
|
|
return cmd
|
|
|
|
|
|
def __invalidate_cache(self, repo_name):
|
|
|
"""we know that some change was made to repositories and we should
|
|
|
invalidate the cache to see the changes right away but only for
|
|
|
push requests"""
|
|
|
invalidate_cache('get_repo_cached_%s' % repo_name)
|
|
|
|
|
|
|
|
|
def __load_web_settings(self, hgserve, extras={}):
|
|
|
#set the global ui for hgserve instance passed
|
|
|
hgserve.repo.ui = self.baseui
|
|
|
|
|
|
hgrc = os.path.join(self.repo_path, '.hg', 'hgrc')
|
|
|
|
|
|
#inject some additional parameters that will be available in ui
|
|
|
#for hooks
|
|
|
for k, v in extras.items():
|
|
|
hgserve.repo.ui.setconfig('rhodecode_extras', k, v)
|
|
|
|
|
|
repoui = make_ui('file', hgrc, False)
|
|
|
|
|
|
if repoui:
|
|
|
#overwrite our ui instance with the section from hgrc file
|
|
|
for section in ui_sections:
|
|
|
for k, v in repoui.configitems(section):
|
|
|
hgserve.repo.ui.setconfig(section, k, v)
|
|
|
|
|
|
return hgserve
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
